package com.sky.service.impl;

import com.alibaba.druid.support.spring.stat.BeanTypeAutoProxyCreator;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.BaseException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.util.TextUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

@Service
@Slf4j
@Data
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO, employee);
        //设置账号的状态，默认正常状态 1表示正常 0表示锁定
        employee.setStatus(StatusConstant.ENABLE);
        //设置密码，默认密码123456
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        log.info("密码：{}", employee.getPassword());
        employeeMapper.insert(employee);
    }

    @Override
    public void delete(EmployeeDTO employeeDTO) {
        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(employeeDTO.getUsername());

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }
        employeeMapper.delete(employee);

    }

    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        //开始分页查询pageNum从1开始，非0. select * from employee limit 0,10
        PageHelper.startPage(employeePageQueryDTO.getPageNum(), employeePageQueryDTO.getPageSize());
        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

        return PageResult.builder()
                .total(page.getTotal())
                .records(page.getResult())
                .build();
//        long total = page.getTotal();
//        List<Employee> list = page.getResult();
//        return new PageResult(total, list);
    }

    @Override
    public String startOrStop(Integer status, Long id) {
        Employee employee = Employee.builder().id(id)
                .status(status)
                .build();
        Integer num = employeeMapper.update(employee);
        if (num > 0) {
            return MessageConstant.UPDATE_SUCCESS;
        } else {
            throw new BaseException(MessageConstant.UPDATE_FAIL);
        }
    }

    @Override
    public Employee getEmployeeById(Long id) {
        if (id != null) {
           Employee employee= employeeMapper.getEmployeeById(id);
            if(employee!=null) {
                employee.setPassword("******");
            }
            return employee;
        } else {
            throw new BaseException(MessageConstant.ARGUMENTS_NULL);
        }

    }

    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);

//        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        Integer num=employeeMapper.update(employee);
        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (num ==0) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }
    }

}
